Technical Specifications Measurement Range: 0.05–40 m Measuring Accuracy: ±1.5 mm Laser Class: Class 2 Laser Colour: Red Laser Diode: 635 nm, <1 mW Weight: 0.1 kg Units: m/cm, ft/inch Tripod Thread: 1/4' Dust & Splash Protection: IP54 Power Supply: 2 × 1.5 V AAA batteries Automatic Shut-Off: 5 minutes Display: Colour display Measurement Functions: Length, area, volume, indirect height and other measuring functions. Description Laser Measure Bosch GLM 400 AP Professional is a compact 40 m digital laser distance meter designed for fast and accurate professional measurements. It provides a 0.05–40 m measuring range with ±1.5 mm typical accuracy. The colour display makes measurements easy to interpret, while the dedicated conversion button allows quick unit changes. Its IP54 protection, lightweight 0.1 kg design and multiple measurement functions make it suitable for professional construction and installation work. Ideal for: Construction, carpentry, flooring, tiling, drywall work, electrical installation, HVAC, painting, interior measurements and material estimation.